立彬の日本語
私はむなしく費やした時間を取り戻さなければ。
tbd
I must make up for lost time.
1,981
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虚しい， 空しい， むなしい
1. empty, void, vacant
2. vain, fruitless, futile, ineffective
3. lifeless
空的、虚无的、空荡的；徒劳的、无果的；毫无生机
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費やす， ついやす
1. to spend, to expend, to consume
2. to waste, to squander, to throw away
3. to devote
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時間， じかん
1. time
2. hour
3. period, class, lesson
时间的单位：小时；小时；时间，时刻
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を
1. indicates direct object of action
2. indicates subject of causative expression
3. indicates an area traversed
4. indicates time (period) over which action takes place
5. indicates point of departure or separation of action
6. indicates object of d...
表示动作的直接对象；表示经过的场所；表示离开或分开的点
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取り戻す， とりもどす
1. to take back, to get back, to regain, to recover, to restore, to recoup
收回，取回，重新获得，恢复，重建，挽回
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なければ， 無ければ
1. if (it) doesn't exist, if there is no ..., if (one) doesn't have ...
2. if not ..., unless ...
3. have to ..., must ...
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は
1. indicates sentence topic
2. indicates contrast with another option (stated or unstated)
3. adds emphasis
指示句子的主题；表示与另一选项（无论是否明确提及）形成对比；表示强调
